\documentclass[UTF8, 11pt, oneside]{ctexbook}
\input{czds1-styles}
\input{czds1-symbols}
\input{czds1-tikz-snippets}

\begin{document}

\include{czds1-title-page}

\frontmatter
\include{units/czds1-explanation}

\tableofcontents
\thispagestyle{empty}

\mainmatter
\include{units/czds1-ch1}
\include{units/czds1-ch2}
\include{units/czds1-ch3}
\include{units/czds1-ch4}


\end{document}
